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🛠️ Fix it fast, fix it flawless—be the repair pro everyone envies!
The SX Siroflex Mortar Repair Cement Grey (300ml) is a high-viscosity, ready-to-use acrylic mortar designed for small pointing and repair jobs. It requires no primer, adheres to multiple surfaces including metal, plastic, stone, and wood, and cures best in dry conditions above 5°C. Packaged in a convenient cartridge with a V-shaped nozzle, it offers easy application and water-based cleanup, making it a reliable, professional-grade solution for quick, durable masonry repairs.






| Asin | B0C69MG58L |
| Best Sellers Rank | 467 in DIY & Tools (See Top 100 in DIY & Tools) 3 in Cement |
| Brand | Siroflex |
| Colour | Grey |
| Compatible Material | Metal, Plastic, Stone, Wood |
| Container Type | Cartridge |
| Country Of Origin | Netherlands |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,319) 4.2 out of 5 stars |
| Global Trade Identification Number | 05032822003575 |
| Included Components | 1 x SX Cement Grey Mortar Repair Cement 300ml |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Volume | 300 Millilitres |
| Manufacturer | Siroflex Lte |
| Manufacturer Part Number | SXMORTRC310CG |
| Material | Acrylic |
| Model Number | SXMORTRC300CG |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Ready to use, no primer required |
| Specific Uses For Product | Construction and Repair |
| Unit Count | 300.0 millilitre |
| Viscosity Level | High |
| Water Resistance Level | Water Resistant |
User
Good but runs out quickly
This is easy to use and saves time trying to get right mixture doing it yourself. Drawback we had to use rechargeable gun as thick. Biggest issue is it doesn’t cover much area. I was doing between my slabs and one tube only did two and a half so beware how much you need.
User
Good product
Good product for little maintenance jobs struggled to get it out of tube though
User
Excellent
Great valueReally easy to use on many little jobs around house and gardenWould highly recommend productDoes exactly what it states in adQuick deliveryRecommend highly 👌
User
cement
very happy with product easy to use and finishes great
User
Does what I cannot - great quick fix and still going strong.
I'm a competent DIYer but building work is something I rarely do. When it comes to brickwork I do it so infrequently that I have never got good at it. Reeccently I had need to replace an old rotten single pane wooden window with a new uPVC one. It was a struggle but looked OK but my attempt at mixing my own mortar and repairing the brickwork was a failure. The next day a small child could with only a sneezs have undone what I had done. So I bought some of this stuff - easy to use just like any other gunk you might have in your cartridge gun. Various colours available and it did the job of sizing the brickwork around the new window and beneath the cill in no time. The brickwork is still solid. I was fairly sure the stuff wouldn't keep so I used the little bit that was left fixing the back step. It's not cheap stuff but if you have had a bit of bother and need it to work this stuff is perfect to bridge the gap between skill and need.
User
Total waste of money do not buy.
Absolute rubbish dont waste your money on this item. It dosent even come out of the cartridge gun.
User
Good but it doesn’t go far.
A good product but doesn’t go very far, Enough cement to point about six paving slabsAt £4 plus a tube it’s not cheap .
User
Good but runs out too quickly
Good product but it goes too quickly, always buy more than you think you might need
Trustpilot
2 weeks ago
1 month ago